Challenger App

No.1 PSC Learning App

1M+ Downloads
Evaluate: (-9) - (-60) ÷ (-15) + (-3) x 6
The average age of 40 students of a class is 12 years. If the age of the teacher is also included, the average age of the whole group becomes 13 years. The age (in years) of the teacher is:
The average age of 35 students in a group is 15 years. When the teacher's age is included, the average age of the group increases by 1.25 years. What is the teacher's age (in years)?
The simple interest on a principal amount (in ₹) is ₹524 for a period of 2 years at the rate of 5% per annum. The principal amount (in ₹) is:
The diagonals of a rhombus are 4 m and 6 m, respectively. Find its area (in m²).
Ajay invested some money in HDFC at 4% per annum rate of interest. What would be the corresponding simple interest (in ₹) if after 2 years, Ajay got ₹204 as compound interest, considering annual compounding?
If the income of Ravi is 24% more than that of Ram, then by what percentage is the income of Ram less than that of Ravi?
The greatest number, which divides 1477 and 671 to leave 0 and 6 respectively as remainders, is:
Pramod sold 154 chairs and had a gain equal to the selling price of 54 chairs. What is his profit percentage?
A shopkeeper bought an article for &520. At what price (in 7) should he sell the article to make 20% profit?
Two trains having lengths of 340 m and 360 m are running at speeds of 80 km/h and 90 km/h, respectively, in the same direction. The time taken (in minutes) by the faster train, coming from behind, to completely cross the other train is:
Krish has ₹1224 with him. He divided it amongst his sons Veer and Nitin and asked them to invest it at 4% rate of interest compounded annually. It was seen that Veer and Nitin got same amount after 12 and 13 years respectively. How much (in ₹) did Krish give to Nitin?
Evaluate: 32 ÷ 8 × 4-3 × 3
The greatest number, which divides 943 and 1957 to leave 7 and 1 respectively as remainders, is:
Select the most appropriate ANTONYM of the given word. Authenticate
Select the most appropriate option to fill in the blank. She felt a ______ of relief after the exam was over.

Identify the INCORRECTLY spelt word in the following sentence.

Clear communicetion is essential for effective collaboration and successful completion of complex projects at work.

Select the most appropriate option to substitute the underlined segment in the given sentence.

Learning a new language can be all challenging and rewarding.

The given sentence is divided into four segments.

Select the option that has the segment with an adverbial usage error.

Patricia and / her associate / softly examined / the ancient artefact.

Select the most appropriate option to fill in the blank.

Tamanna is as ________________________________ with all her projects.

Select the most appropriate option that can substitute the underlined words in the given sentence.

The rural life can be contrasted to that of urban life.

The following sentence has been divided into parts. One of them may contain an error.

Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.

The hotel/ is not big enormous/ to accommodate some more guests.

Select the most appropriate synonym of the given word.

Annihilate

Select the INCORRECTLY spelt word.
What should come in place of the question mark (?) in the given series based on the English alphabetical order? KRB MTD OVF QXH?
What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged? 48×3-16+6÷3=?
Select the correct alternative that when filled in the blanks in the same sequence will make the series logically complete. _KHLJ _IMKM NLNK_ MOL_

Select the figure from among the given options that can replace the question mark (?) in the following series.

2.jpeg
In a coded language 'TRIP' is coded as '#@&$' and "PART" is coded as '&^@#'. What is the code for A in the same code language?
In a certain code language, 'A + B' means 'A is the daughter of B', 'A - B' means 'A is the brother of B', 'A x B' means 'A is the sister of B' and 'A ÷ B' means 'A is the son of B'. How is G related to E if 'E + F x G - H ÷ I'?
Seven people, E, F, G, H, K, L and M are sitting in a row, facing north (but not necessarily in the same order) .Only three people sit between E and L. F sits to the immediate left of L. No one sits to the right of M. Only two people sit between M and F. H sits to the immediate right of G. How many people sit between K and H?

Two different positions of the same dice are given below. Which is the number on the face opposite to the face containing 12?

3.jpeg
Kalamandalam Kshemavathy Pavithran, recipient of Padma Shri and a performer of mohiniyattam, belongs to which of the following states of India?
According to the Indian Constitution, which of the following Schedule deals with the separation of powers of the government?
Which dance of Eastern India was recognized in the Representative List of Intangible Cultural Heritage of Humanity in 2010?
Which dance of Eastern India was recognized in the Representative List of Intangible Cultural Heritage of Humanity in 2010?
While learning to cook, Rajesh noticed that when he crushed a dozen of groundnuts in a grinder, it gets lined with oil. Whereas no oil is released when he grinds a bowl of cumin. What could be the reason behind this difference?
The 'August Offer' of 1940 was made by which British government official?
When was the 3rd edition of the Khelo India Winter Games held in India?
In which type of climate are deciduous forests and tree-shredded grasslands found?
What role do MNCs play in the globalisation process?
As per Sample Registration System (SRS) 2020, which of the following Indian states had the highest natural growth rate in population?
The position(s) of how many letters will remain unchanged if each of the letters in the word ROTCHES is arranged in the English alphabetical order?
DGHK is related to ADEH in a certain way based on the English alphabetical order. In the same way, MQTU is related to JNQR. To which of the following is HLQR related, following the same logic?
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd man out is not based on the number of consonants/vowels or their position in the letter-cluster.)
What should come in place of the question mark (?) in the given series? 650 660 669 677 684 ?

Select the Venn diagram that best illustrate the relationship between the following classes. Petrol, Car, Electric.

4.jpeg

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:

Some balls are toys.

All toys are plastic.

No plastic is water.

Conclusions:

(1): Some balls are plastic.

(Il): No toy is water.

In a certain code language 'NBSF' is coded as '82' and 'IMSR' is coded as '118'. What is the code for 'AYLC' in the given code language?
GFBE is related to FEAD in a certain way based on the English alphabetical order. In the same way, AZVY is related to ZYUX. To which of the given options is CBXA related, following the same logic?